Ore-washer



(No Model.)

S. STUTZ.

om: WASHER.

Patented Deo. 6,1881.

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@Ntra rares' SEBASTIAN STUTZ, OF PITTSBURG, PENNSYLVANIA.

ORE-WASHER.

SPECIFICATION forming part of Letters Patent No. 250,460, dated December 6, 1881.

Application tiled June 28,1831. (No model.)

To all whom it may concern:

Be it known that I. SEBASTIAN SrU'rz, a citizen ot`-the United States, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a new'and useful Ore-Washer, of which the following'is a specification.

My invention relates to improvementsv in separating or washing machines for ore, coal, 85e.; and the objects of my improvements are, first, economy' in the cost of construction, and second, saving of labor in the working of the machine. I attain these objects by the mechanism illustrated in the accompanying drawings, in which- Figure 1 is a vertical section on the line as x of Fig. 3. Fig. 2 is an end view. Fig. 3 represents a top view. Fig. et is a cross-section on the line y y of Fig. 3, and Figs. 5 and 6 represent the valve and seat on a larger scale.

Similar letters refer to similar parts throughout the several views.

This invention relates to that class of separating or washing machines for which Letters Patent ofthe United States No.188,691,l\lareh 20, 1877, and No. 194,059, August 14, 1577,

. were granted to me.

The combination and arrangement of the machinery differs from the above machines in the following points: rst, in the construction and arrangement ofthe mechanism imparting movement to the plunger; second, in the arrangement of' the bottom below the plunger, being the continuation of the curved partition underneath the sieve; third, the latter partition being perforated to give passage to the small pieces of ore falling through the sieve into the lower receptacle, and, fourth, in the valve and seat to regulate the outlet of the ore.

A is a rectangular box, provided with the sieve s, upon which the ore is received from the chute J. At the rear of the sieve s is the receptacle B, containing the box-shaped piston or plunger P. The latter is lifted upward by means of differential cams F, fixed upon the shaft u, and receiving movement from the pulley p.

The front side of the box A is provided with the rotary valve d, by means of which the ore is let into the channel c to reach the elevatorbox E.

For the purpose ot' overcoming the inertia ofthe water more easily, and to obtain a greater forwarding' power ot' the latter, the, bottom of the plunger-box B is made concave and forms the continuation of thel curved partition n. Thus the delivery ofthe heavy ore on the sieve is greatly facilitated and the capacity ot' the machine increased. The partition n is perforated, as shown by Fig. 3, to let the small pieces of ore into the lower part ot' the box A,

from which they reach the outside through the gate-opening o. The valve d (shown on a larger scale by Figs. 5 and 6) is fixed upon stems c @,-aud operated by means` ofthe lever l. The combination and arrangement of the cam movement beneath the plunger-box B makes the inlet of the ore into the machine more convenien t, and permits the transmission ofshocks or strains of the plunger P direct to the foundation, instead of on the box, as heretofore.

The cross-head or yoke Y xed to the piston-rod fr has two legs, t' z', provided with footplates to rest upon the block f. The legs i t' are fitted closely to the hub of the cams l and move between the latter, formingguides, in the same time. Two arms, a a., standing rectangular to the legs t' t', form the working part of the cams F for the lifting of the plunger P. The stroke ol the latter can be easily regulated by the thickness ot the block f resting upon rubber or 'steel springs m m. c is a stoppingbox to prevent the loss of water. The supply of' the latter is taken in through n, and the operation of the apparatus is as follows:

While the weighted plunger P is slowly raised upward the space below it is taken up by fresh water, and as soon as the cams escape the arms a a of the yoke Y a sudden impulse is given to the body of water by the heavy plunger P, forcing it through the sieve s, and lifting up the layer of material. The impurities and lighter substances are forced to the top of the layer, and are carried off by the waste water over the bridge b to the outside of the apparatus. The heavy a nd pure ore, by its greater specific gravity, takes the place immediately upon the sieve s, and is forwarded xoe through the valve d and the channel c to the elevator E. The latter discharges the clean ore upon the chute g, to be stored into cars or hoppers. The outlet of the ore is regulated by the valve d and lever l. The operation of the .machine is continuous, each part of the material being delivered automatically, and only one man is required to separate several hundred tons of ore per day.

I am aware that prior to my invention ore or coal separating machines have been made with their mechanism for imparting motion to the pistou or plunger below the separatingsieve; also,thatseparating-machines have been made with their piston or plunger mechanism voutside and above the separating-chamber;

but I am not aware that ore or coal separating machines have been made with their piston or plunger mechanism outside the separatingchamber and directly underneath the plungerboX, said mechanism being connected with the piston from below.

Vhat I claim, and desire to secure by Letters Patent, is-

l. An ore or coal separating or washing machine of one or more sieves, having its mechanism for working the piston or plunger arranged underneath the plunger-box and on the outside of the sieve-chamber, said mechanism to move the plunger from below and to be connected with the piston or plunger from below, substantially as described, and for the purpose set forth.

2. In an ore or coal washing machine, the curved or concaved plun ger-bottom a and stopping-box 1J, and the perforated partition u, in combination with the plunger P, substantially as described, and for the purpose set forth.

3. In an ore or coal washing machine, the lifting-yoke Y, having arms a a and guides i t', the regulating-block f, and springs m m, in combination with the cams F and shaft u, substantially as described, and for the purpose set forth'.

SEBASTIAN STUTZ.

Witnesses:

J. J. McGoRMrcK, J. M. HARTZELL. 

